Fun on Google Video
I’ve never really thought impressions were that funny, but Frank Caliendo (as seen in this movie) is absolutely fantastic.
Also, remember the Portal trailer I posted recently? I’ve now played its precursor, Narbacular Drop. It’s the same game idea, but with crappier graphics and a slightly buggy engine. You can even create your own levels! There are some people out there who have made incredibly complex levels, which are pretty cool.